A tag for algebraic multigrid (AMG). Used to transport information from the user to the implementation.
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#include <amg_base.hpp>
Detailed Description
A tag for algebraic multigrid (AMG). Used to transport information from the user to the implementation.
Constructor & Destructor Documentation
| amg_tag |
( |
unsigned int |
coarse = 1, |
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unsigned int |
interpol = 1, |
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double |
threshold = 0.25, |
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double |
interpolweight = 0.2, |
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double |
jacobiweight = 1, |
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unsigned int |
presmooth = 1, |
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unsigned int |
postsmooth = 1, |
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unsigned int |
coarselevels = 0 | |
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) |
| | [inline] |
The constructor.
- Parameters:
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| coarse | Coarsening Routine (Default: VIENNACL_AMG_COARSE_CLASSIC) |
| interpol | Interpolation routine (Default: VIENNACL_AMG_INTERPOL_DIRECT) |
| threshold | Strength of dependence threshold for the coarsening process (Default: 0.25) |
| interpolweight | Interpolation parameter for SA interpolation and truncation parameter for direct+classical interpolation |
| jacobiweight | Weight of the weighted Jacobi smoother iteration step (Default: 1 = Regular Jacobi smoother) |
| presmooth | Number of presmoothing operations on every level (Default: 1) |
| postsmooth | Number of postsmoothing operations on every level (Default: 1) |
| coarselevels | Number of coarse levels that are constructed (Default: 0 = Optimize coarse levels for direct solver such that coarsest level has a maximum of COARSE_LIMIT points) (Note: Coarsening stops when number of coarse points = 0 and overwrites the parameter with actual number of coarse levels) |
Member Function Documentation
| unsigned int get_coarse |
( |
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) |
const [inline] |
| unsigned int get_coarselevels |
( |
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) |
const [inline] |
| unsigned int get_interpol |
( |
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) |
const [inline] |
| double get_interpolweight |
( |
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) |
const [inline] |
| double get_jacobiweight |
( |
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) |
const [inline] |
| unsigned int get_postsmooth |
( |
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) |
const [inline] |
| unsigned int get_presmooth |
( |
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) |
const [inline] |
| double get_threshold |
( |
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) |
const [inline] |
| void set_as |
( |
double |
jacobiweight |
) |
[inline] |
| void set_coarse |
( |
unsigned int |
coarse |
) |
[inline] |
| void set_coarselevels |
( |
int |
coarselevels |
) |
[inline] |
| void set_interpol |
( |
unsigned int |
interpol |
) |
[inline] |
| void set_interpolweight |
( |
double |
interpolweight |
) |
[inline] |
| void set_postsmooth |
( |
int |
postsmooth |
) |
[inline] |
| void set_presmooth |
( |
int |
presmooth |
) |
[inline] |
| void set_threshold |
( |
double |
threshold |
) |
[inline] |
The documentation for this class was generated from the following file:
- /data/development/ViennaCL/dev/viennacl/linalg/detail/amg/amg_base.hpp
